Reaction Rate Calculator

Calculate reaction rates, rate constants, half-life, and concentration changes using chemical kinetics equations. Supports zero, first, second, and nth order reactions.

Reaction Rate Calculator

Calculation Type

Reaction Order

Initial Concentration (A₀) - M

Final Concentration (Aₜ) - M

Time (t) - seconds

About Chemical Kinetics

Formula

k = ln(A₀/Aₜ) / t

Reaction Orders

Zero Order: Rate is constant, independent of concentration
First Order: Rate is proportional to concentration
Second Order: Rate is proportional to concentration squared
Nth Order: Rate is proportional to concentration to the nth power

How to Use

Select the calculation type you want to perform
Choose the reaction order
Enter the required values based on your calculation
Click Calculate to get the result

Applications

Chemical reaction analysis
Drug degradation studies
Food preservation
Environmental chemistry
Industrial processes

Important Notes

Concentrations must be positive
Time must be non-negative
Rate constants must be positive
For nth order reactions, n ≠ 1
Units depend on reaction order